[android-developers] Stop watch functionality in Android

Hi,

I want to implement something like Stopwatch functionality., 

When the user clicks on a Start button, I want to start the stopwatch which shows the hr:min:sec in textview and keep on updates it, 

and when the user clickis on button Stop, then timer needs to be stop. 

Even if the user starts the Stopwatch and keep the application in background by pressing home, after sometime if 

the user comes to application eventhough the timer should keep run until the user clicks on Stop button.

Can anyone give me suggestions or best approach to implement this functionality.

I tried with Timer and TimerTask but when I click on Home after some time If I comeback to app the timer text is not updating and its showing as empty. 

Timer  travelTimer = new Timer();

travelTimer.schedule(new TimerTask() {        

@SuppressLint("SimpleDateFormat")

@Override

public void run() {

                            ----

                                -------------------------

 

                       }

                     }, 0, 1000);

Is the reason when the app goes to background, the android system is killing the Timer.. ?

Please give me the suggestion. 

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